Overview
Description
The ISL78229 is an automotive grade (AEC-Q100 Grade 1), 2-phase 55V synchronous boost controller that simplifies the design of high power boost applications. This device enables simple, modular design for systems requiring power and thermal scalability, and offers a highly robust solution for the most demanding environments.
The ISL78229EV1Z board demonstrates the 2-phase synchronous boost operation and PMBus™ functionalities of the ISL78229. It verifies the high efficiency of synchronous boost operation and all the features of the IC including input constant current (CC) control, analog/digital tracking, diode emulation, phase dropping, PMBus functions, etc.
Combined with the Renesas PowerNavigator™ Software as the GUI and the included USB to PMBus Adapter (dongle, ISLUSBEVAL1Z), the user can conveniently evaluate the ISL78229's PMBus functionalities, which provides access to a number of useful system control parameters and diagnostic features.
Features
- Input/Output voltage withstands 55V DC and 60V transients
- Input average constant current (CC) control loop
- PWM and analog track functions
- Forced PWM operation with negative current limiting
- External synchronization
- Selectable continuous conduction mode (CCM), diode emulation (DE) and phase dropping (PH_DROP) modes
- Comprehensive protections
- Selectable hiccup or latch-off fault responses
- I2C/PMBus™ compatible digital interface to control/monitor operation parameters
- Boards can be stacked for parallel operations
- Monitoring test points for key signals
Applications
Design & Development
Support
Support Communities
Knowledge Base
Videos & Training
Renesas introduces the ISL78227 and ISL78229 automotive-grade 55V, 2-phase synchronous boost controllers. The ISL78229 features a PMBus interface for advanced control, telemetry, and diagnostics. Renesas showcases how these devices address common challenges in automotive power design.